Name:	gsh_DisclosureOfRevenuesCollectedAndSettledThroughRelatedPartiesLineItems
Namespace Prefix:	gsh_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The revenue from rfreight transportation services transportation related services.

No definition available.

Name:	gsh_RevenueFromFreightTransportationServices
Namespace Prefix:	gsh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of revenue from rendering of other transportation related services.

No definition available.

Name:	gsh_RevenueFromRenderingOfOtherTransportationRelatedServices
Namespace Prefix:	gsh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of revenue arising from the exchanges of goods or services. [Refer: Revenue]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2018-01-01
-Name IAS
-Number 18
-IssueDate 2017-01-01
-Paragraph 35
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=18&date=2017-03-02&anchor=para_35_c&doctype=Standard&book=B
-URIDate 2017-03-09

Name:	ifrs-full_RevenueArisingFromExchangesOfGoodsOrServices
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of revenue arising from the rendering of passenger transport services. [Refer: Revenue]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2018-01-01
-Name IAS
-Number 18
-IssueDate 2017-01-01
-Paragraph 35
-Subparagraph b
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=18&date=2017-03-02&anchor=para_35_b_ii&doctype=Standard&book=B
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2017-03-09